The senate of Thessaloniki’s Aristotle University on Tuesday condemned as “disgusting and unacceptable” an attack by around 30 far-leftists on a group of students and a professor who tried to clean up piles of garbage that have accumulated outside the institution’s theological faculty over the course of a two-month strike by municipal contract workers.

According to witnesses, the students who tried to clean up the mess were heckled by the protesters, who accused them of trying to obstruct the workers’ strike and threw more trash onto the grounds of the faculty.

Apart from the verbal abuse, one of the protesters is said to have attacked a female student with a spade, injuring her leg.